Bondhus Felo Series insulated screwdrivers feature ergonomically designed cellulose acetate handles with full surface-coated soft component for highest torque transmission. Tool Length in. Assorted, Slotted Screwdrivers qty. 5, Pieces qty. 7, Material Type Chrome molybdenum steel, Phillips Screwdrivers qty. 2. Individually tested for applications up to 1000 Volts Chrome/molybdendum/vanadium steel blades reach a hardness of up to 61 Rockwell